A high EMS daisy-chain SPI interface for battery monitor system

作     者：Qidong Zhang Yintang Yang Changchun Chai 

作者机构：Institute of Microelectronics Xidian University Xi'an 710071 China 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2017年第38卷第3期

页      面：120-124页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：Project supported by the National Natural Science Foundation of China(No.61334003) 

主　　题：SPI daisy chain EMS EMI battery monitor battery management 

摘      要：A high EMS current-mode SPI interface for battery monitor IC（BMIC） is presented to form a daisychain bus configuration for the cascaded BMICs and the communication between the MCU and master *** on analog and digital mixed filtering technique,the proposed daisy-chain can avoid the isolated communication issue in electromagnetic interference environment,and reduce the extensively required I/O ports of MCU,at the same time reduce the system *** proposed daisy-chain interface was introduced in a 6-ch battery monitor IC which was fabricated with 0.35μ m 30 V BCD *** measurement result shows that the presented daisy-chain SPI interface achieves better EMS performance with different EMI injection while just consuming a total operation current up to 1 m A.